cuprous cyanide

例句：

1. 1. This compound is used in the production of copper and steel.
   这种化合物用于生产铜和钢铁。
2. 2. The chemical properties of this compound are similar to those of cupric oxide.
   这种化合物的化学性质与氧化铜相似。
3. 3. The use of this compound in electroplating has been banned due to its toxicity.
   由于其毒性，这种化合物在电镀中的使用已被禁止。